Fix wrong signedness, by Andre Przywara.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3815 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 20 insertions, 19 deletions

diff --git a/vnc.c b/vnc.c
index b20fe21d7d..9fb8c85a1a 100644
--- a/vnc.c
+++ b/vnc.c
@@ -60,12 +60,12 @@ typedef struct Buffer
 {
     size_t capacity;
     size_t offset;
-    char *buffer;
+    uint8_t *buffer;
 } Buffer;
 
 typedef struct VncState VncState;
 
-typedef int VncReadEvent(VncState *vs, char *data, size_t len);
+typedef int VncReadEvent(VncState *vs, uint8_t *data, size_t len);
 
 typedef void VncWritePixels(VncState *vs, void *data, int size);
 
@@ -376,7 +376,7 @@ static void vnc_write_pixels_generic(VncState *vs, void *pixels1, int size)
 static void send_framebuffer_update_raw(VncState *vs, int x, int y, int w, int h)
 {
     int i;
-    char *row;
+    uint8_t *row;
 
     vnc_framebuffer_update(vs, x, y, w, h, 0);
 
@@ -440,8 +440,8 @@ static void send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
 static void vnc_copy(DisplayState *ds, int src_x, int src_y, int dst_x, int dst_y, int w, int h)
 {
     int src, dst;
-    char *src_row;
-    char *dst_row;
+    uint8_t *src_row;
+    uint8_t *dst_row;
     char *old_row;
     int y = 0;
     int pitch = ds->linesize;
@@ -499,7 +499,7 @@ static void vnc_update_client(void *opaque)
 
     if (vs->need_update && vs->csock != -1) {
 	int y;
-	char *row;
+	uint8_t *row;
 	char *old_row;
 	uint32_t width_mask[VNC_DIRTY_WORDS];
 	int n_rectangles;
@@ -516,10 +516,11 @@ static void vnc_update_client(void *opaque)
 	for (y = 0; y < vs->height; y++) {
 	    if (vnc_and_bits(vs->dirty_row[y], width_mask, VNC_DIRTY_WORDS)) {
 		int x;
-		char *ptr, *old_ptr;
+		uint8_t *ptr;
+		char *old_ptr;
 
 		ptr = row;
-		old_ptr = old_row;
+		old_ptr = (char*)old_row;
 
 		for (x = 0; x < vs->ds->width; x += 16) {
 		    if (memcmp(old_ptr, ptr, 16 * vs->depth) == 0) {
@@ -622,7 +623,7 @@ static int buffer_empty(Buffer *buffer)
     return buffer->offset == 0;
 }
 
-static char *buffer_end(Buffer *buffer)
+static uint8_t *buffer_end(Buffer *buffer)
 {
     return buffer->buffer + buffer->offset;
 }
@@ -853,7 +854,7 @@ static ssize_t vnc_tls_pull(gnutls_transport_ptr_t transport,
 }
 #endif /* CONFIG_VNC_TLS */
 
-static void client_cut_text(VncState *vs, size_t len, char *text)
+static void client_cut_text(VncState *vs, size_t len, uint8_t *text)
 {
 }
 
@@ -1181,7 +1182,7 @@ static void set_pixel_format(VncState *vs,
     vga_hw_update();
 }
 
-static int protocol_client_msg(VncState *vs, char *data, size_t len)
+static int protocol_client_msg(VncState *vs, uint8_t *data, size_t len)
 {
     int i;
     uint16_t limit;
@@ -1254,7 +1255,7 @@ static int protocol_client_msg(VncState *vs, char *data, size_t len)
     return 0;
 }
 
-static int protocol_client_init(VncState *vs, char *data, size_t len)
+static int protocol_client_init(VncState *vs, uint8_t *data, size_t len)
 {
     char pad[3] = { 0, 0, 0 };
     char buf[1024];
@@ -1327,11 +1328,11 @@ static void make_challenge(VncState *vs)
         vs->challenge[i] = (int) (256.0*rand()/(RAND_MAX+1.0));
 }
 
-static int protocol_client_auth_vnc(VncState *vs, char *data, size_t len)
+static int protocol_client_auth_vnc(VncState *vs, uint8_t *data, size_t len)
 {
-    char response[VNC_AUTH_CHALLENGE_SIZE];
+    unsigned char response[VNC_AUTH_CHALLENGE_SIZE];
     int i, j, pwlen;
-    char key[8];
+    unsigned char key[8];
 
     if (!vs->password || !vs->password[0]) {
 	VNC_DEBUG("No password configured on server");
@@ -1738,7 +1739,7 @@ static int vnc_start_tls(struct VncState *vs) {
     return vnc_continue_handshake(vs);
 }
 
-static int protocol_client_vencrypt_auth(VncState *vs, char *data, size_t len)
+static int protocol_client_vencrypt_auth(VncState *vs, uint8_t *data, size_t len)
 {
     int auth = read_u32(data, 0);
 
@@ -1768,7 +1769,7 @@ static int protocol_client_vencrypt_auth(VncState *vs, char *data, size_t len)
     return 0;
 }
 
-static int protocol_client_vencrypt_init(VncState *vs, char *data, size_t len)
+static int protocol_client_vencrypt_init(VncState *vs, uint8_t *data, size_t len)
 {
     if (data[0] != 0 ||
 	data[1] != 2) {
@@ -1798,7 +1799,7 @@ static int start_auth_vencrypt(VncState *vs)
 }
 #endif /* CONFIG_VNC_TLS */
 
-static int protocol_client_auth(VncState *vs, char *data, size_t len)
+static int protocol_client_auth(VncState *vs, uint8_t *data, size_t len)
 {
     /* We only advertise 1 auth scheme at a time, so client
      * must pick the one we sent. Verify this */
@@ -1847,7 +1848,7 @@ static int protocol_client_auth(VncState *vs, char *data, size_t len)
     return 0;
 }
 
-static int protocol_version(VncState *vs, char *version, size_t len)
+static int protocol_version(VncState *vs, uint8_t *version, size_t len)
 {
     char local[13];